Desalination is the technical process of removing dissolved salts from seawater, thus producing fresh water.
Although the method may seem ideal for Cape Town's abundant coastlines, practically, it is too expensive and energy-intensive.
Civil engineering and urban water researcher, Professor Neil Armitage said the reality is that it is not a great solution, adding that there are better alternatives.
Listen to the full conversation from The John Maytham Show:
The fact of the matter that it is expensive and energy-intensive to desalinate seawater; it's a risky business. If we are to desalinate anything, we're better off desalinating treated sewage effluent.— Prof Neil Armitage, d director of UCT's Urban Water Management research unit